Extending the argument to feedstock security as well as mass utilisation, ultimately in most instances traditional mineral acids appear to be the most sensible option for Brønsted acid esterification catalysts. (springeropen.com)
Popular catalysts are the familiar Brønsted acidic mineral acids and Lewis acidic transition metal salts, but supported catalysts (including enzymes) and recyclable heterogeneous solid acids are becoming increasing popular because of the influence of green chemistry [ 1 , 2 ]. (springeropen.com)
The solid phase of soils is composed of both mineral and organic components. (arizona.edu)
Seismic events, the major focal zone of Nový Kostel (NK area), CO 2 monitoring stations, CO 2 mofettes and mineral springs, and Quaternary volcanoes are also indicated (see the legend). (copernicus.org)
Metals1
Alloys are made by combining one metal with one or more other elements, typically metals, to create improved properties such as strength, hardness, and corrosion resistance. (basicmedicalkey.com)
Substrate1
Wetting" results when the contact angle, θ, between the aqueous latex and the solid substrate is less than about 90 degrees. (justia.com)
Aqueous3
A permutation of these aqueous micellar delivery systems are microemulsions which form easily, even spontaneously, in the presence of typically high emulsifier concentrations. (justia.com)
In typical pharmaceutical microemulsion applications, the hydrophobic material is a water insoluble organic material that is emulsified by surfactants to form a discontinuous phase in a continuous aqueous phase (see, for example, U.S. Pat. (justia.com)
A method based on atomic force microscopy is used to delineate the properties that determine single-molecule adhesion onto solid substrates in aqueous environment. (cipsm.de)
Catalysts3
H + exchanged zeolites are particularly useful as solid acid catalysts . (knowpia.com)
This aspect - the ability to generate voids within the solid material - underpins the ability of zeolites to function as catalysts. (knowpia.com)
In addition to that, high-silica zeolites are H + exchangeable, unlike natural zeolites, and are used as solid acid catalysts . (knowpia.com)
Commonly2
It refers to plants that are not commonly produced, purchased, or even consumed as food but have the potential to be used as a rich source of nutrition. (frontiersin.org)
The resulting emulsion polymers, commonly referred to as latexes, have found many uses including paints and coatings. (justia.com)
Primary5
While defects are typically avoided in devices, their presence is essential in some systems, where they act as one of the primary device mechanisms. (nature.com)
The combination of yarn, first material and latex has often previously been referred in the prior art as a primary layer (also as a primary backing and/or primary mat). (justia.com)
To improve mechanical properties such as dimensional stability of the resultant textile product a second layer of a carrier material has been used (also previously been referred to in the prior art as a secondary layer and/or support sheet) and is typically glued to the back side of the primary layer to form a laminated textile product with the desired properties. (justia.com)
Typically the primary layer, secondary layer and adhesive joining them, each comprise very different materials with different mechanical properties as they are designed to perform different functions. (justia.com)
Blast injuries are generally categorized as primary to quaternary. (medscape.com)
Latex2
The yarn bearing layer is typically impregnated with a latex of a cross-linkable polymer. (justia.com)
Shredded floor coverings are typically deposed of in landfill and as the cross-linked latex is not biodegradable to any great extent, the shredded remains will be present for many years. (justia.com)
Material2
The following metrics impart an appreciation of material use extending beyond just the conversion of reactants to the product (Table 1 ). (springeropen.com)
Typically an oppositely charged material has to be added to the furnish either before or after a negatively charged strength agent. (ncsu.edu)
Chemical2
In materials chemistry, a quaternary phase is a chemical compound containing four elements. (wikipedia.org)
A library of chemical restraints is typically used to ensure consistency between the model and the prior knowledge of stereochemistry. (iucr.org)
Https1
For more information, please refer to https://www.mdpi.com/openaccess . (mdpi.com)
Acid1
The least complicated and most useful of several esterification methodologies is the Fischer esterification, which requires an acid catalyst, and in the case of solid reactants often a solvent as well. (springeropen.com)
Screens1
In their role as retention aids, acrylamide copolymers are added very late to the process, typically either right before or after the pressure screens. (ncsu.edu)
Structures1
The system is modeled as a formation of satellite droplets, distributed around a larger, central core droplet and we extend the problem to explain the formation of fractal structures. (nature.com)
Liquid4
Liquid crystals are anisotropic fluids, in which the rigid and anisotropic constituent molecules have a strong tendency to form mesophases with long-range orientational order, described by the order parameter S . In the simplest and most widely studied liquid crystal phase, the nematic, the molecules are free to move around each other and lack any long range positional order. (nature.com)
Spontaneous wetting occurs when the surface energy between the solid and liquid, γSL is less than the surface energy between the solid and air, γSA. (justia.com)
Dobutamine Stress Echocardiography Another nonexercise stress test, gas flow expressed as F ̄, liquid flow Lp and the Schmidt number Scv for the vapour phase. (top5binarybrokers.com)
Laser pyrolysis exploits a laser beam to provide the energy necessary for the pyrolysis reaction of a solid, liquid, or gaseous reagent inside a reactor in which there is a controlled and oxygen-free atmosphere. (springer.com)
Properties1
Zeolites are white solids with ordinary handling properties, like many routine aluminosilicate minerals, e.g. feldspar . (knowpia.com)
Generally1
In Australia , "colliery" generally refers to an underground coal mine. (wikipedia.org)
In some cases it cuts through slope debris and periglacial deposits and comprises fast retreating cliffs, but on the outer paladins wallhack download of the Archipelago wave action has removed quaternary sediments and cuts directly into sandstones and quartzite. (serenitylife.us)
Additional1
When a full stroke cannot be achieved, additional attempts are typically made, and after each attempt the bit is advanced by the length of core recovered. (iodp.org)
Systems2
Analysis of legacy temperature data and groundwater flux estimates indicates that the region's known geothermal systems may contribute more than 45,000 tons of dissolved solids per year to the shallow aquifer system, with around 8500 tons of dissolved solids being delivered from localized groundwater upflow zones within those geothermal systems. (mdpi.com)
All three standard coring systems, the advanced piston corer (APC), extended core barrel (XCB), and rotary core barrel (RCB), were used during Expedition 349. (iodp.org)
Small1
The XCB is a rotary system with a small cutting shoe (bit) that extends below the large APC/XCB bit. (iodp.org)
Earth1
Typically, 10 to 20 percent of the precipitation that falls to the Earth enters water-bearing strata, which are known as aquifers. (eldacenter.eu)
Entry1
The image also showed a steam plume at the location of the ocean entry, and an ash-rich plume extending NE from the volcano's summit. (si.edu)
Image2
The image showed that the 3.5-km-long lava flow noted in previous reports (observed entering the sea in an image from 23 September 2005) had extended the shoreline on the N side of island. (si.edu)
An ASTER satellite image from 23 September showed a 3.5-km-long lava flow extending from the summit of Montagu Island (Mt. Belinda) into the sea. (si.edu)
Content1
For assessing the folate content in a range of Brazilian PANCs, we extended the validation of an existing stable isotope dilution assay (SIDA) for the stably 13 C-labelled 10-formyl-Pte[ 13 C 5 ]Glu (10-CHO-Pte[ 13 C 5 ]Glu). (frontiersin.org)
Standard1
The authors conducted a retrospective matched cohort study to compare the morbidity and mortality of pediatric patients with cancer who are treated on a phase 3 clinical trial compared with those receiving standard therapy and/or off trial. (cdc.gov)